Re: [Php-java-bridge-users] Reading fsockopen stream causes Severe error in PhpCGIServlet

[<php...@li...>]

Hi Peter,

> The apache server sends garbage if you send http 1.0 but expect http
> 1.1.

are we talking about this apache feature which can stream bytes to the
client?

This feature is quite useful on C level, you can simply read() the bytes
as apache generates them. But it is difficult to handle in PHP or Bea
WebLogic for example, because their network implementations use a buffer
which reads data eagerly. 

If the PHP network buffer contains 4 bytes and fread() requests 20
bytes, PHP tries to read 16 bytes from the network, instead of simply
returning the 4 bytes available so far. I don't know why PHP and other
JEE servers implement their network buffers this way. It might be more
efficient for normal HTTP connections, but it is bad for data packets
which don't have an explicit length; in PHP you must call fread($sock,
1), if you don't want to run into a dead lock. Or you must unblock the
stream and call stream_select() for each packet. Very low tech...


Regards,
Jost Bökemeier